MIXHITS AUDIO MRT-35M User manual

Please follow the instructions in this manual to obtain the optimum results from this unit.
We also recommend that you keep this manual handy for future reference.
OPERATION MANUAL
MRT-35M
Mixer Amplifer
AUDIO
Lorem ipsum
MRT-35M
MIXER AMPLIFER

TABLE OF CONTENTS
1. SAFETY PRECAUTIONS
2.
3. FEATURES
4. FUNCTIONS
5.
6. CONNECTION DIAGRAM
7.
8.
GENERAL DESCRIPTION
OPERATION
Ω
.
BLOCK DRAWING
SPECIFICATION

Be sure to read the instructions in this section carefully before use.
Make sure to observe the instructions in this manual as the conventions of safety symbols and messages
regarded as very important precautions are included.
We also recommend you keep this instruction manual handy for future reference.
Safety Symbol and Message Conventions
Safety symbols and messages described below are used in this manual to prevent bodily injury and property
damage which could result from mishandling. Before operating your product, read this manual first and
understand the safety symbols and messages so you are thoroughly aware of the potential safety
Indicates a potentially hazardous situation which, if mishandled, could
result in death or serious personal injury.
Indicates a potentially hazardous situation which, if mishandled, could
result in moderate or minor personal injury, and/or property damage.
When Installing the Unit
• Do not expose the unit to rain or an environment
where it may be splashed by water or other liquids,
as doing so may result in fire or electric shock.
• Use the unit only with the voltage specified on
the unit. Using a voltage higher than that which is
specified may result in fire or electric shock.
• Do not cut, kink, otherwise damage nor modify
the power supply cord. In addition, avoid using
the power cord in close proximity to heaters, and
never place heavy objects including the unit itself
on the power cord, as doing so may result in fire
or electric shock.
• Be sure to replace the unit's terminal cover after
connection completion. Because high voltage is
applied to the speaker terminals, never touch
these terminals to avoid electric shock.
• Be sure to ground the safety ground (earth)
terminal to avoid electric shock. Never ground to a
gas pipe as a catastrophic disaster may result.
• Avoid installing or mounting the unit in unstable
locations, such as on a shaky table or a slanted
surface. Doing so may result in the unit falling
down, causing personal injury and/or property
damage.
When the Unit is in Use
Should the following irregularity be found during
use, immediately switch off the power, disconnect
the power supply plug from the AC outlet and
contact your Mixhits Audio dealer. Do not attempt to
operate the unit in this condition as this may cause
fire or electric shock.
• If you detect smoke or an odor from the unit.
• If water or any metallic object gets into the unit
• If the unit falls, or the unit case breaks
• If the power supply cord is damaged.
• If it is malfunctioning (no sound.)
• To prevent a fire or electric shock, never open or
remove the unit case as there are high voltage
components inside the unit. Refer all servicing to
your Mixhits Audio dealer.
• Do not place cups, bowls, or other containers of
liquid or metallic objects on top of the unit. If they
accidentally spill into the unit, this may cause a fire
or electric shock.
• Do not insert or drop metallic objects or flammable
materials in the ventilation slots of the unit's cover,
as this may result in fire or electric shock.
1. SAFETY PRECAUTIONS
3

An all-pole mains switch with a contact separation of at least 3 mm in each pole shall be incorporated in
the electrical installation of the building.
When Installing the Unit
• Never plug in nor remove the power supply
plug with wet hands, as doing so may cause
electric shock.
• When unplugging the power supply cord, be sure
to grasp the power supply plug. Never pull on the
cord itself. Operating the unit with a damaged
power supply cord may cause a fire or electric
shock.
• When moving the unit, be sure to remove its
power supply cord from the wall outlet. Moving the
unit with the power cord connected to the outlet
may cause damage to the power cord, resulting in
fire or electric shock. When removing the power
cord, be sure to hold its plug to pull.
• Do not block the ventilation slots in the unit's
cover. Doing so may cause heat to build up inside
the unit and result in fire.
• Avoid installing the unit in humid or dusty
locations, in locations exposed to the direct
sunlight, near the heaters, or in locations
generating sooty smoke or steam as doing
otherwise may result in fire or electric shock.
When the Unit is in Use
• Do not place heavy objects on the unit as this
may cause it to fall or break which may result in
personal injury and/or property damage. In
addition, the object itself may fall off and cause
injury and/or damage.
• Make sure that the volume control is set to the
minimum position before the power is switched on.
Loud noise produced at high volume when power is
switched on can damage hearing.
• Do not operate the unit for an extended period of time
with the sound distorting. This is an indication of a
malfunction, which in turn can cause heat to generate
and result in a fire.
• If dust is allowed to accumulate in the unit over a
long period of time, a fire or damage to the unit
may result. Contact your Mixhits Audio dealer to
schedule a cleaning of the unit.
• If dust accumulates on the power supply plug or
in the wall AC outlet, a fire may result. Clean it
periodically. In addition, insert the plug in the wall
outlet securely.
• Switch off the power, and unplug the power
supply plug from the AC outlet for safety
purposes when cleaning or leaving the unit
unused for several days. Doing otherwise may
cause a fire or electric shock.
4
SAFETY PRECAUTIONS

MIC 1 MIC 2/AUX 1 MIC 3/AUX 2 BASS TREBLE
0
4
6
2
8 10 12
14
16
18
20
MASTER VOLUME
5
0
1
3
4 6
7
2 8
9
10
5
0
1
3
4 6
7
2 8
9
10
5
0
1
3
4 6
7
2 8
9
10 -10 +10 -10 +10
ON
OFF
POWER
The MRT-35M is a tabletop constant voltage amplifier. It's small size and light weight is designed to deliver
reliable music and paging in many places such as small offices, quick server restaurants, retail, and
hospitality locations.
2. GENERAL DESCRIPTION
5
3. FEATURES
1. Tabletop design, black plate, high-grade professional knobs.
2. 3 MIC level inputs, 2 AUX line level inputs,(one 1/4" port, one RCA port).
3. 1 MIC volume control, 2 MIC/AUX volume controls.
4. MIC1 takes priority to other audio inputs.
5. There are separate treble and bass adjustment knob.
6. One MIC2 / AUX1 selector switch, one MIC3 / AUX2 selector switch.
7. 35W constant resistance 4~16 ohms output and constant voltage 70V output.
8. Power supply with ~110-240V 50/60Hz, with power signal light.
4. FUNCTIONS
4.1 FRONT PANEL
1. MIC1 volume control.
2. MIC2/AUX1 volume control.
3. MIC3/AUX2 volume control.
4. BASS
Adjust bass response. Rotate clockwise to
increase bass output and counter clockwise
to reduce it.
5. TREBLE
Adjust treble response. Rotate clockwise to
increase treble output and counter clockwise
to reduce it.
6. MASTER VOLUME
Master volume controls all inputs.
7. POWER
The power LED illuminates when power is on.
8. ON/OFF POWER SWITCH
1 2 345 6 78

NC
NC
MIC3 AUX1 MIC2 MIC1
AUX2
L
R
AUX2 MIC3 AUX1 MIC2
OUTPUT
COM
4-16Ω
70V 100V
MIC3 AUX1 MIC2 MIC1
AUX2
L
R
AUX2 MIC3 AUX1 MIC2
OUTPUT
COM
4-16Ω
70V 100V
BATT SUPPLY
24V
5A
4. FUNCTIONS
4.2 REAR PANEL
6
4.3 REAR PANEL(+24V)
11. Optional DC24V input
12. AUX2 Signal unbalanced input port
13. AUX2/MIC3 selector switch
14. MIC3 Signal unbalanced input port
15. AUX1 Signal unbalanced input port
16. AUX1/MIC2 selector switch
17. MIC2 Signal unbalanced input port
18. MIC1 Signal unbalanced input port
9. AC power input
10. OUTPUTS
To utilize 4~16Ω speakers connect the
positive wire to the 4~16Ω terminal and
negative wire to COM. To utilize 70V or
100V speakers connect the positive wire to
70V or 100V and the negative wire to COM.
Do not mix and match 4~16Ω speakers with
70/100V speakers.
9 10 12 13 14 15 16 17 18
9 10 12 13 14 15 16 17 18
11

NC
NC
MIC3 AUX1 MIC2 MIC1
AUX2
L
R
AUX2 MIC3 AUX1 MIC2
OUTPU T
COM
4-16Ω
70V 100V
5.OPERATION ILLUSTRATION
5.1
5.2
Power LED
Power switch
Figure 5.3
MIC 1 is an unbalanced 1/4" input. Before using MIC 1 turn the input gain to the lowest setting then raise it slowly
to achieve the desired volume.
5.3 MIC1 input(1/4")
Figure 5.1/5.2
When the power switch is "ON" the power indicator is lit (red).
When the power switch is "OFF", the power indicator will go off.
7

NC
NC
MIC3 AUX1 MIC2 MIC1
AUX2
L
R
AUX2 MIC3 AUX1 MIC2
OUT PU T
COM
4-16Ω
70V 100V
OPERATION ILLUSTRATION
8
5.4 AUX2 input
Figure 5.4
AUX2 RCA inputs are summed to mono and gain is controlled by using the MIC3 / AUX2 knob. To use AUX2
the selector switch must be set to AUX2. AUX2 and MIC3 can not be used simultaneously.
Figure 5.5
To utilize 4~16Ω speakers connect the positive wire to the 4~16Ω terminal and negative wire to COM. To utilize
70V or 100V speakers connect the positive wire to 70V or 100V and the negative wire to COM. Do not mix and
match 4~16Ω speakers with 70/100V speakers. Do not exceed 35 watts total load. It is strongly suggested to
utilize no more than 80% of the rated power to allow for headroom.
安 全 须 知
Note:
1. Pay attention to the positive and negative connection..
2. Please be sure to install the terminal protecting cover when you're finished.
Speaker terminals have high voltage. Do not touch to avoid electric shock.
POWER
ON
OFF
PLAY STOP NEXTPREVIOUS
OPEN
CLOSE
CD Volume control
NC
NC
OUTPUT
COM
4-16Ω
70V 100V
NC
NC
OUTPUT
COM
4-16Ω
70V 100V
NC
NC
MIC3 AUX1 MIC2 MIC1
AUX2
L
R
AUX2 MIC3 AUX1 MIC2
~AC INPUT
120V 50-60Hz 80W
OUT PUT
COM
4-16Ω
70V 100V
5.5 -16Ω4 /70V/100V speaker output
4-16Ωspeaker
NC
NC
OUTPUT
COM
4-16Ω
70V 100V
...... ......
70Vspeaker 100Vspeaker

6.CONNECTION DIAGRAM
9
NC
NC
MIC3 AUX1 MIC2 MIC1
AUX2
L
R
AUX2 MIC3 AUX1 MIC2
OUTPUT
COM
4-16Ω
70V 100V
AUDIO OUT
RR
LL
Audio Source
MIC 1
MIC 2
MIC 3
AUDIO OUT
RR
LL
speaker

7. BLOCK DIAGRAM
10
ON/OFF switch
AC Power input
Rectifier filter circuit
+24V
+8V
-8V
AR OPAMP AR
OPAMP
AR OPAMP AR OPAMP
Limiting circuit
VR1 VR2 VR3
AR OPAMP
+8V -8V -8V +8V VCC VCC +8V -8V +8V -8V
MIC1 MIC2 MIC3 AUX2
K1
AUX1
K2
Bass/treble circuit
Power amplifier
Audio transformer
4-16
Ω
70V 100V
VR4
Master volume
Hybrid amplifier circuit
+24V
MIC2/AUX1
volume
MIC1 volume
MUTE
MIC3/AUX2
volume
Voltage stabilizing circuit

8. SPECIFICATIONS
T-35M
Model
Rated Power Output
Frequency Response
Speaker Outputs
Tone
Input Sensitivity & Impedance
S/N Ratio
THD
Protection
Power Supply
Power Consumption
Dimensions
Weight
Priority function
6.2 lbs.
4-16Ω,70V/100V
80Hz~16KHz(+/- 3dB)
≥75dB
The rated power output, distortion degree ≤1%
50W
MIC IN: +5mV, unbalance 1/4" connect terminal
AUX IN: 350mV, unbalance RCA/1/4" connect
terminal
11
MIC1 has priority over all sources.
35W
Bass: ±10dB at 100Hz
Treble: ±10dB at 10KHz
High temp, overload & short-circuit protection
11.2" X 7.4" X 2.5"
~110V 50Hz ~110V 60Hz
~120V 50Hz ~120V 60Hz
~220V 50Hz ~220V 60Hz
~230V 50Hz ~230V 60Hz
~240V 50Hz ~240V 60Hz
X

WARRANTY
VersionV1.3
This warranty protects you for a specific period (“Warranty Period”) from your date of purchase as stated in your bill of sale or as otherwise
established by Mixhits Audio. The specific Warranty Period is three years. Any warranty replacement parts or product will assume only the remainder
of the Warranty Period of the original product.
Except as otherwise stated in this policy, this warranty covers defects in materials and workmanship if: (1) you purchased this product from a dealer
that is a Mixhits Audio authorized dealer with respect to this product at the time of your purchase; (2) your original, dated bill of sale is presented
whenever warranty service is required during the warranty period; and (3) unless Mixhits Audio states otherwise, you purchased this product in brand
new condition.
This policy does not cover damage or loss: caused by accident (including force majeure or natural forces), misuse, abuse, neglect, product
modification; occurring during shipment (even when Mixhits Audio has arranged or paid for shipping); caused by failure to follow instructions in the
owner’s guide, including failure to perform recommended periodic or routine maintenance or improper maintenance; resulting from repairs by
someone Mixhits Audio did not authorize; to the decorative surface of this product; caused by using this product for other than its intended purpose,
or covered under any of your (or your installer’s) insurance policy or coverage. The following are also excluded from this warranty: claims based
upon any misrepresentations by the seller; if this product’s serial number has been altered, defaced or removed; deterioration of component parts,
the nature of which is to become worn or depleted with use, even if supplied by Mixhits Audio; any installation, removal or re-installation; any set-up
calibration or adjustment; any performance variations due to installation-related circumstances, such as program source quality or AC power
fluctuations.
If this product has a defect covered by this warranty, Mixhits Audio will, at its sole option, either: (1) repair this product at no charge to you, using new
or refurbished replacement parts, (2) exchange this product with a product that is new or which has been manufactured from new or serviceable
used parts and is at least functionally equivalent to this product, or (3) refund the purchase price of the product.
This warranty protects only the original end-user (“you”), and is not transferable. Any attempt to transfer this warranty shall immediately make this
warranty void. This warranty is valid only for Mixhits Audio Professional products, as listed above, purchased from authorized Mixhits Audio
Professional dealers within the fifty United States, and it does not apply to products purchased or transferred elsewhere. If you purchased this
product (or have subsequently transferred it) outside the fifty United States, you should contact your local Mixhits Audio distributor for warranty
information.
You are responsible for transporting your product to (as well as from, in the event that Mixhits Audio finds no defect covered by this warranty) either
Mixhits Audio or an authorized service center and for payment of all shipping charges; however, Mixhits Audio will pay the return shipping charges
(in the event you return the product to Mixhits Audio) if the repairs are covered by warranty, provided that, Mixhits Audio reserves the right to choose
the mode, the carrier and the timing of such return shipping (if Mixhits Audio finds that there are no defects covered by this warranty, then you shall
be responsible for all shipping charges). If you experience difficulty in transporting your product or are in need of packing materials, please advise us
and we may be able (but have no obligation) to suggest alternative procedures and/or provide adequate packing materials.
THIS WARRANTY AND REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, REMEDIES AND
CONDITIONS, WHETHER ORAL OR WRITTEN, EXPRESS OR IMPLIED. Mixhits Audio SPECIFICALLY DISCLAIMS ANY AND ALL IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
IF MIXHITS AUDIO CANNOT LAWFULLY DISCLAIM IMPLIED WARRANTIES UNDER THIS LIMITED WARRANTY, ALL SUCH WARRANTIES,
INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED IN DURATION TO THE
DURATION OF THIS WARRANTY.
No Mixhits Audio reseller, agent, or employee is authorized to make any modification, extension, or addition to this warranty.
MIXHITS AUDIO IS NOT RESPONSIBLE FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING
FROM ANY BREACH OF WARRANTY OR CONDITION, OR UNDER ANY OTHER LEGAL THEORY, INCLUDING BUT NOT LIMITED TO LOST
PROFITS, DOWNTIME, GOODWILL, DAMAGE TO OR REPLACEMENT OF ANY EQUIPMENT OR PROPERTY, ANY COSTS OF RECOVERING,
REPROGRAMMING, OR REPRODUCING ANY PROGRAM OR DATA STORED IN OR USED WITH Mixhits Audio PRODUCTS. Mixhits Audio’S
TOTAL LIABILITY IS LIMITED TO THE REPAIR OR REPLACEMENT OF THIS PRODUCT OR TO THE ORIGINAL PURCHASE PRICE
PURSUANT TO THE TERMS OF THIS WARRANTY.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES OR EXCLUSIONS OR
LIMITATIONS ON THE DURATION OF IMPLIED WARRANTIES OR CONDITIONS, SO THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT
APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS THAT VARY BY
STATE OR (WHERE APPLICABLE IN THE COUNTRIES WHERE Mixhits Audio HAS NON-US/CANADIAN AUTHORIZED DEALERS) COUNTRY.
NO ACTION OR CLAIM TO ENFORCE THIS WARRANTY SHALL BE COMMENCED AFTER THE EXPIRATION OF THE WARRANTY PERIOD.